python如何基于redis实现ip代理池_Python

python如何基于redis实现ip代理池

2020-04-17 10:24Maple_feng Python

这篇文章主要介绍了python如何基于redis实现ip代理池,文中通过示例代码介绍的非常详细，对大家的学习或者工作具有一定的参考学习价值,需要的朋友可以参考下

使用apscheduler库定时爬取ip，定时检测ip删除ip，做了2层检测，第一层爬取后放入redis——db0进行检测，成功的放入redis——db1再次进行检测，确保获取的代理ip的可用性

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									import requests, redis

									import pandas

									import random

									from apscheduler.schedulers.blocking import BlockingScheduler

									import datetime

									import logging

									db_conn = redis.ConnectionPool(host="*.*.*.*", port=6379, password="123456")

									redis_conn_0 = redis.Redis(connection_pool=db_conn, max_connections=10,db=0)

									redis_conn_1 = redis.Redis(connection_pool=db_conn, max_connections=10,db=1)

									# 删除redis数据库里的ip

									def remove_ip(ip,redis_conn):

									  redis_conn.zrem("IP", ip)

									  print("已删除 %s..." % ip)

									# 获取redis数据库里一共有多少ip

									def get_ip_num(redis_conn):

									  num = redis_conn.zcard("IP")

									  return num

									# 获取ip的端口

									def get_port(ip,redis_conn):

									  port = redis_conn.zscore("IP", ip)

									  port = str(port).replace(".0", "")

									  return port

									# 添加ip和端口到数据库里

									def add_ip(ip, port,redis_conn):

									  # nx: 不要更新已有的元素。总是添加新的元素,只有True，False

									  redis_conn.zadd("IP", {ip: port}, nx=55)

									  print("已添加 %s %s...ok" % (ip, port))

									# 列出所有的ip

									def get_all_ip(redis_conn):

									  all_ip = redis_conn.zrange("IP", 0, -1)

									  return all_ip

									# 随机获取一个ip

									def get_random_ip(redis_conn):

									  end_num = get_ip_num(redis_conn)

									  num = random.randint(0, end_num)

									  random_ip = redis_conn.zrange("IP", num, num)

									  if not random_ip:

									    return "",""

									  random_ip = str(random_ip[0]).replace("b", '').replace("'", "")

									  port = get_port(random_ip,redis_conn)

									  return random_ip, port

									# 获取代理ip

									def spider_ip(x,redis_conn):

									  print(datetime.datetime.now().strftime('%Y-%m-%d %H:%M:%S'), x)

									  for p in range(1, 20):

									    res = pandas.read_html("http://www.89ip.cn/index_{}.html".format(p))

									    # print(res)

									    # print(type(res[0]))

									    for i in range(len(res[0])):

									      ip = res[0].iloc[i, 0]

									      port = res[0].iloc[i, 1]

									      print("ip", ip)

									      print("port", port)

									      add_ip(str(ip), str(port),redis_conn)

									logging.basicConfig(level=logging.INFO,

									          format='%(asctime)s %(filename)s[line:%(lineno)d] %(levelname)s %(message)s',

									          datefmt='%Y-%m-%d %H:%M:%S',

									          filename='log1.txt',

									          filemode='a')

									def aps_detection_ip(x,redis_conn):

									  print(datetime.datetime.now().strftime('%Y-%m-%d %H:%M:%S'), x)

									  res=get_random_ip(redis_conn)

									  ip=res[0]

									  port=res[1]

									  try:

									    requests.get("http://www.baidu.com",proxies={'https':'{ip}:{port}'.format(ip=ip,port=port)})

									    print("可用",ip,port,res)

									    if redis_conn!=redis_conn_1:

									      add_ip(str(ip), str(port), redis_conn_1)

									  except Exception:

									    # ip错误失效就删除

									    remove_ip(ip,redis_conn)

									scheduler = BlockingScheduler()

									scheduler.add_job(func=aps_detection_ip, args=('检测循环任务0',redis_conn_0), trigger='interval', seconds=3, id='aps_detection_ip_task0',max_instances=10)

									scheduler.add_job(func=spider_ip, args=('获取循环任务0',redis_conn_0), trigger='interval', seconds=60*60*2, id='spider_ip_task0',max_instances=10)

									scheduler.add_job(func=aps_detection_ip, args=('检测循环任务1',redis_conn_1), trigger='interval', seconds=3, id='aps_detection_ip_task1',max_instances=10)

									scheduler._logger = logging

									# scheduler.start()

									if __name__ == '__main__':

									  # print(get_ip_num())

									  # spider_ip("获取循环任务")

									  scheduler.start()

									  # aps_detection_ip("检测循环任务")